Showing posts with label black storm-petrel. Show all posts
Showing posts with label black storm-petrel. Show all posts

Wednesday, December 2, 2015

Of Fruit and Glory: Lifering Again In Ventura County


Brown Boobies have made their presence known in 2015 up and down the California Coast all the way north to British Columbia. You show me warm water, and I will show you boobies. All photos today are from Ventura and Santa Barbara County waters.

In October of this year, I returned to an autumnal birding battleground where I had not waged avian war since 1999: Ventura County. It was like MacArthur returning to the goddamn Phillipines. Pretty much the same thing. The place can, and has been, littered with Vague Runts in the fall, so it was great to be back at the proper time of year. I had racked up massive numbers of life and state birds in the 90's in Ventura, when I was but a young nerd, so it was refreshing to be back during the month when anything can happen. This time, I had a specific target bird in mind...not a standard rarity per se, but a tubenose that can be found offshore in the right month and the right luck of the right year. And so with comrades old and new, we lurked offshore on a big Island Packers catamaran.


The most abundant bird of the day was Black-vented Shearwater; we had obscene numbers of them in the channel near Santa Cruz Island. It was really, really gross. 


Jaegers were in abundance, which is always good news for a birder, but it also means that a birder is going to get seriously humbled. Jaeger identification is not for the faint of heart.


I reckon this is a juvenile Long-tailed. It's real dark. Look at that cute little stubby bill.


Here is another juvenile Long-tailed. It's not real dark, unlike the previous bird. It's doing a passable juvenile Western Gull impression here, which is odd.



This was an interesting bird...there was debate over dark Pomarine Jaeger vs. South Polar Skua as this bird made a single pass by the boat; despite the heavy bill, I don't think this has wings broad enough for a skua, and I would also expect to see more white visible (or any at all) on those fresh primaries growing in. It's also a deep, almost featureless dark brown on the upperparts, all of which point toward Pomarine Jaeger in my book.


Out between Santa Cruz and Santa Rosa Islands we ran into some migrant Pigeon Guillemots. These birds migrate north for the winter, which is not a trendy style of migration at all.


We had a mellow pair of young Sabine's Gull near the boat for a bit. It was a soothing experience.


Here is the second bird. Twice mellowed. By this point in the day the birding had gotten a bit slow, but finally a few Black Storm-Petrels appeared. A few minutes later, we came up on what exactly I was hoping for: rafts.



Rafts of storm-petrels, of course. Storm-petrels are not for dilettantes. These are not birds meant for casual enjoyment. They certainly don't belong anywhere near stringers, because the devoted stringer can transform a storm-petrel into any number of species with little effort. Storm-petrels, by their very frustrating and subtle nature, can make you want to bash your head into a wall...or they can yield sweet, nectary storm-petrel fruit.


Ah, there is nothing so refreshing as a big raft of storm-petrels. There were lots of Blacks, the expected species, but it was quickly apparent there were much smaller birds in with them. Were the rafts bearing fruit???  See top rightish above.


And there they were...Least Storm-Petrels (front right and back). Finally. This was a life bird. The wait was finally over. The fruit had been bore.


This was the bird that had lured me down...it was time we became acquainted, and it was indeed a pleasure. Leasts are very small, very dark (note lack of any noticeable upperwing markings on the bird above), and have tiny, wedge-shaped tails. They really do resemble little bats in shape, if not in flight style. Majestic? No. Glorious? Yes.


After getting past the Least and Black Storm-Petrels (and getting some bonus Ashy Storm-Petrels), we came upon a pair of murrelets. Luckily, they were Craveri's Murrelets, which I'd only seen once before. These were good birds, damn good birds, especially on top of a long-awaited lifer. Aren't Mexican birds great?


You can see their distinctive dark underwings, which Guadalupe and Scripps's lack.


Finally, it was time to visit the famed booby roost at Santa Barbara Island. Brown Boobies began to appear more and more frequently, and everyone was hoping an additional Sulid would be lurking at the roost.


Eager birders frothed at the mouth and smacked their lips lustily. They wanted boobies something fierce.


Good lord, there were a lot of boobies on that rock...85! Here is a chunk of the boob roost.

At the end of the day, it was a great trip, and a nice change of pace from the waters I typically lurk in. Thanks to Dave Pereksta for organizing it and Joel Barrett for encouraging me to come down. A couple days later, with one Gareth Jones and Officer Searcy (the notorious Bird Policeman), I found my nemesis Ventura County bird trodding upon the sod...a Red-throated Pipit. They have been a dime a dozen a recent years, but for whatever reason that was not the case in the 90's, when it was my turn to flog the sod. Despite the lack of photos, I assure you that it was a succulent (and Siberian) county bird.

Between the nostalgia and quality birds, my time down there was Great Success. Luckily, I did not have to wait much longer to catch the next Siberian Express...you know what I'm saying?

Monday, August 10, 2015

Raft Rage Out of Half Moon Bay


Pelagic season has started off with a bang...not with any proper rarities, but with the next best thing...huge rafts of storm-petrels!  I've seen bigger flocks, but these birds were relatively approachable and were very diverse. I was one of the leaders on the August 2 Shearwater Journeys trip out of Half Moon Bay, which featured warm temperatures, calm seas, and a solid variety of seabirds.  But before the petrels came to pass, there were a lot of other highlights. Right out of the harbor I got my county sea otter, which is a rarity this far north.


Marine mammals were plentiful offshore, with numerous humpback whales, including a few who were engaging in some facemelting breaches, which this obviously is not a picture of.


Pink-footed and Sooty Shearwaters. There were some big shearwater flocks in relatively shallow water, feeding in big groups alongside assorted marine mammals.


This shearwater flock was diving into the water amongst a big pod of short-beaked common dolphins. It was a vulgar display of marine life.


Common dolphins are more of a SoCal species, so they are always a nice surprise this far north. They also really like bowriding, so they almost always come in close to the boat.


Can't complain about looks like this.  We also had Dall's and harbor porpoises, and Pacific white-sided dolphins during the day.  Other nonbirds of note included fur seals, Steller's sea lion, and two blue sharks.


Sabine's Gulls in alternate plumage are one of the best things to see offshore, not so much for rarity or majesty, but for overall aesthetics.


Aesthetically pleasing is an understatement.


As I've mentioned in one of the recent Maine posts, Arctic Terns are missed on many boat trips and are often tough to get a respectable look at.  This bird was loafing on some driftwood and was much more cooperative than the average offshore tern.



Nice wing pattern on this young bird.


Unlike the Arctic Terns and Sabine's Gulls, this Scripps's Murrelet was butt ugly. It's undergoing some serious molt, and has a bill deformity to boot. I generally do not talk ill of murrelets of any kind, but this one was astonishingly trashy. I'm sure it'll look much better in a few weeks.



No matter how often I see Black-footed Albatross, and no matter how many photos I take of them, I can't seem to stop, and they invariably make it into pelagic trip posts no matter what. So here is a gratuitous albatross photo, I hope ya'll have the same tireless enthusiasm for them that I do. Apparently the captain of another boat saw a couple Laysan Albatross in the same area the day before, but we had to be happy with BFAL.


I said storm-petrels made this trip, so lets get into some storm-petrels.  This is an Ashy Storm-Petrel, and amazingly enough you can actually make out its ashy color tones.  Compare the relative paleness of this bird with the Black Storm-Petrel a few photos below.


We had over 100 Wilson's Storm-Petrels on the day, which is a new record in California.  It was weird to see so many...this was California, not North Carolina. They aren't as wary of boats as the other storm-petrel species here can be, so we typically get pretty good looks at them when they are found.


Although the number of Wilson's present were surprising, I couldn't get over how many Fork-tailed Storm-Petrels were out there.  There were hundreds of them, and I didn't see a single one on trips last year...in fact I'm not sure if anyone did!  Talk about an unpredictable bird...


To round out the storm-petrels for the day, here is a Black Storm-Petrel.


This is a part of one of the rafts of petrels we came across.  Some of us on the boat were getting weak at the knees at the sight of so many clustered together...these flocks are fertile grounds for holding some kind of rarity, and it does not help that both Wedge-rumped and Tristram's Storm-Petrels were found a few miles away on the Farallones earlier this year.  All four species shown above are visible in this photo.

I like how this little group of Fork-taileds has composed themselves.  That's an Ashy on the bottom right, note the dark gray (not black) color compared to the silvery Fork-taileds, which are seemingly manufactured to be the color of a fog bank.


Bear witness to another storm-petrel raft, with all four species.  Hopefully the storm-petrels will be holding it down for a while longer, it would be great to track these flocks down again.  Big storm-petrel flocks are a luxury, not a reliable thing at all, and seeing so many at the very beginning of August totally took me by surprise.


I worked with Fork-tailed Storm-Petrels in Alaska, so I have a soft spot for them.  Here's one of the closer shots I got.


On the way back in we came across this juvenile Tufted Puffin, doing its best Rhinoceros Auklet impression, which they are prone to do.  That's a Common Murre on the left.

So, all in all a hella good trip, though I still have not met a Hawaiian Petrel...I'll try again this weekend.

Wednesday, July 29, 2015

Boat Season Has Arrived


When August arrives, birders across the continent have one thing on their obsessive brains: shorebirds.  This Global Birder Ranking System #7 U.S. birder?  Two things...shorebirds, and seabirds.  Oh, and another thing, pointing and screaming bird names as loud as possible with a captive audience.

Of course, there are always seabirds Out There, but the end of July heralds the beginning of pelagic season.  Away from Monterey Bay and Half Moon Bay, there is no where else on the west coast where boats depart on the regular to troll for tubenoses, for alcids, for boobies, for jaegers...you get the picture.  I am lucky enough to be able to get on a lot of these trips (mostly out of Half Moon), and spend time with this impressive and difficult group of birds...the birds of The Deep. In anticipation of my first west coast seabirding trip of the year (and yet another shot at Hawaiian Petrel, a bird I need), I thought I would cobble together some photos from past July and August trips. As always, if you are thinking about doing your first west coast pelagic trip, or your first ever pelagic trip, what are you waiting for? Get on a boat!

But these anxious feelings are nothing different from any other year.  What is different about this year is El Nino...not a speculated one, not a possible one, but a real one.  The nonbirder associates El Nino (sorry for the lack of tilde) with rain, the west coast seabirder associates it with rare birds. Weird seabirds have already put in appearances in California this year...a Red-footed Booby, a Nazca Booby, a Kelp Gull, a Bridled Tern...and none of those birds were even seen out to sea!  So who knows what will be out there?  Frigatebirds have already been showing up in SoCal, another encouraging sign.  Fingers crossed for Cook's Petrels, an El Nino special, but I will be happy with a Hawaiian (no fucked up ocean currents required), which is very much a bird of August.


Late summer is a good time for albatross, and Black-footed Albatross are almost always out there this time of year.  Unlike many other seabirds we see, if you see a Black-footed Albatross, you are going to get great looks.  It's also a good time for Laysan Albatross (top photo) as well, but a word of warning: 75% of Laysan Albatross called out on boat trips end up being Western Gulls.  Don't become part of that gruesome statistic...caution is warranted.  


Shearwater diversity does not tend to be very high at the beginning of pelagic season, but Sooty and Pink-footed are never missed, assuming the boat gets out of the harbor.  An early Buller's or Flesh-footed is never out of the question, and of course there are a great many other possibilities.


Small numbers of Northern Fulmars are often found on these summer trips, and the birds usually look something like this. They are ragged. They are haggard...and lets face it, they are godawful. Hideous. It's amazing they can even fly, they are molting so hard. Fulmars later in fall are very respectable in appearance and flight capabilities, not so much our summer lingerers. Luckily, if you've never seen a fulmar before, they are not at all afraid of the boat, so you can wonder at their horrible glory from close range.


August is a great month for jaegers, especially Long-tailed, who often will still be retaining their brilliant extendo-tail. The bulk of southbound Long-taileds seem to pass through from August to mid-September, so now is a good time to get them. The always-popular Skua Slam is always within reach this time of year as well.


Black (above) and Ashy Storm-Petrels are the expected storm-petrels early in the season, though Wilson's are not unusual. With El Nino brewing, this could be a good year to find Least Storm-Petrel this far north, though probably not this early. That said, the birding legend they call Papa Echo Lima recently saw some from shore down La Jolla way, which portends great things for those who want to see them up here.


Fact: 75% of Fork-tailed Storm-Petrels claimed on trips are actually phalaropes...but if you are one who warrants caution, then that 75% is not for you. These are Red Phalaropes, the less common, chubbier, more desirable phalarope.


Speaking of chubby, Cassin's Auklets are expected on trips throughout the summer and fall, though their numbers vary.  Unlike albatross and fulmars, Cassin's Auklets hate boats, so getting good looks at them can be stressful.


I know this isn't a compelling photo, but I think it sums up what looking at murrelets can be like over the deep.  Scripps's Murrelets (above) are the expected species, though last summer Craveri's were seen on a number of boats in July and early August. I'm hoping they come back for an encore this year.


Oh yeah, crippling rarities can show up any time...it just takes a shitload of luck, and maximizing your time on the water. This Salvin's Albatross was the star Vague Runt (albeit one not so runty) of the pelagic season last year, and things have never been the same.

All photos were taken offshore from Bodega Bay and Half Moon Bay.

Tuesday, October 29, 2013

Cordell Bank Storm-Petrel Uberflocks


On the September 20th Shearwater Journeys trip out of Bodega Bay, I spotted a distant shimmering haze that I knew was a large flock of storm-petrels rising and settling on the water. We motored over there knowing there would be hella birds, but none of us had any idea how many we would actually be dealing with.



There were hordes of birds. We encountered enormous storm-petrel rafts on both the east and west sides of the northern tip of the Cordell Bank. It was flabbergasting. Unbelievable.



At first, the number of Fork-tailed Storm-Petrel in the flocks was really eye-catching. There were more than I had ever seen, thousands of them. But once we started to realize the number of birds present, several on board began paying more attention to the Ashy Storm-Petrels, clearly the most abundant birds there.


Ashy Storm-Petrels occupy a relatively small range off the west coast of North America, most of which stay in California and nest on the Farrallon Islands. Previous population estimates numbered them at about 10,000 birds. Note the Black Storm-Petrel on the left, appearing significantly larger and darker than the Ashies, which are smaller and darker than the Fork-taileds.




It was really difficult to effectively capture the sheer number of birds out there. Here is a full sized photo of a slice of one of the rafts (click above to enbiggen), it should at least give you an inkling of what we were dealing with.

Luckily, bird wizards Peter Pyle and Steve Howell were on board and did their best to count the birds and arrived at similar estimates. Their final counts for these flocks were 10,500 Ashy Storm-Petrels, 6,500 Fork-tailed Storm-Petrels, 300 Black Storm-Petrels, and 25 Wilson's Storm-Petrels, totaling 17,325 birds...insane!

Assuming the Ashy Storm-Petrel estimate was anywhere near correct (it was quite possibly low), that gives an informal new world population estimate for the species...and if one assumes that those rafts did not contain every single Ashy Storm-Petrel in the world (a safe assumption), then their actual population size becomes more of an open question.



6500 Fork-tailed Storm-Petrels also seems to be a new high count for the state (at least in recent years) according to eBird.

A pelagic trip to the same area reported similar numbers of birds two days later, but to my knowledge these huge flocks were never seen again. It's a mystery where a lot of these birds feed during much of the year...all part of the fun of seabirding, which truly is a different frontier of birding.